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Finding the Fourth Proportional to 28,662,394.40, 42,993,591.60 and 22,993,690.40

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Solution

The fourth proportional to 28,662,394.40, 42,993,591.60 and 22,993,690.40 is: 34,490,535.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,662,394.40 : 42,993,591.60 = 22,993,690.40 : x
  2. Step 2: Convert to fraction form
    28,662,394.40/42,993,591.60 = 22,993,690.40/x
  3. Step 3: Cross multiply
    28,662,394.40x = 42,993,591.60 × 22,993,690.40
  4. Step 4: Simplify right side
    28,662,394.40x = 988,581,334,434,440.62
  5. Step 5: Solve for x
    x = 988,581,334,434,440.62/28,662,394.40
  6. Step 6: Final answer
    x = 34,490,535.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.